Soccer specific aerobic endurance and maximal oxygen uptake tests: A correlation study
Poster Presentation XML
1Department of exercise physiology, Islamic Azad University, Ilam Branch
2Graduate student in Exercise Physiology, Mazandaran University, Babolsar, Iran
Introduction: The Hoff test (aerobic testing with the ball) is very popular in soccer and significantly correlated to maximal oxygen uptake (VO2max) in elite soccer players. However, no study has addressed its relation to VO2max in amateur soccer players. The purpose of the study was to examine the correlation between VO2max and Hoff tests in amateur soccer players.
Methodology: Fourty-eight amateur soccer players (body weight = 76.2 ± 8.4 kg; height = 177.8 ± 7.3 cm; and age = 25.7 ± 4.7 years) were involved in the study. Before each testing session, players were instructed not to eat for at least 3 hours before testing and familiar with the testing procedures. All players were performed the VO2max (Bruce treadmill protocol) and Hoff (dribbling track, two times 4 minute at 90-95% of maximal heart rate, with a three minutes exercise at 70% maximal heart rate in between, the total distance covered was considered as a testing score) tests. The Hoff test measurements were performed a minimum of three days after the VO2max test.
Results: In all players, Pearson correlation coefficient showed that VO2max (54.71 ± 4.15 ml/kg/min) and Hoff (1355.9 ± 81.6 m) performances were significantly related (R = 0.81, P = 0.000004). When the players were divided based on distance covered in the Hoff test into three groups (low = 1210-1304 m; moderate = 1310-1406 m; and high = 1410-1481 m, 16 player in each group); VO2max results were significantly related to all three groups (low, R = 0.69, P = 003; moderate, R = 0.77, P = 0.00005; and high, R = 0.84, P = 0.000002).
Discussion: From these results, Hoff test can be considered as a VO2max in amateur soccer players, whereas there was a stranger correlation in the group of players who have covered more distance in the Hoff test. Thus, the Hoff test is more accurate to estimate VO2max for players with higher dribbling skill level.